30020012112 has 160 divisors (see below), whose sum is σ = 80059518720. Its totient is φ = 9689989120.

The previous prime is 30020012111. The next prime is 30020012147. The reversal of 30020012112 is 21121002003.

It is a super-2 number, since 2×30020012112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020012111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52758964 + ... + 52759532.

It is an arithmetic number, because the mean of its divisors is an integer number (500371992).

Almost surely, 2^30020012112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40029759360).

30020012112 is an abundant number, since it is smaller than the sum of its proper divisors (50039506608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30020012112 is a wasteful number, since it uses less digits than its factorization.

30020012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30020012112 its reverse (21121002003), we get a palindrome (51141014115).

The spelling of 30020012112 in words is "thirty billion, twenty million, twelve thousand, one hundred twelve".